Building block stylus



FIG. 1 is a front perspective view of a building block stylus;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front plan view thereof;

FIG. 4 is a rear plan view thereof;

FIG. 5 is a right side view thereof, a left side view not being shown asit is a mirror image of the right side view;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view.

CLAIM The ornamental design for a building block stylus, as shown anddescribed.